hussey



(NoModeL) 2Sheets-Sheet 1.

O. A. HUSSEY.

ELECTRIC ARC LAMP.

No. 270,676. a Patented Jan. 16,1888.

ng i glm PETERS: Phutnihhognpher. Washmglon. D c.

(No Model.) 2 Sheets-Sheet 2.

- 0. A. HUSSEY.

ELECTRIC ARC LAMP.

No. 270,676. Patented Jan. 16,1883.

l I E l N. PETERS. Pholo-Llthogmphor, Washington. q. 0,

PATENT OFFICE.

CHARLES A. HUSSEY, OF 'NElV YORK, N. Y., ASSIGNOR TO THE HUSSEY ELECTRIC COMPANY, OF SAME PLACE.

ELECTRIC-ARC LAMP.

SPECIFICATION forming part of Letters Patent No. 270,676, dated January 16, 1883,

Application filed May 19, 1882. (No model.)

To all whom it may concern:

Be it known that I, CHARLES A. HUssEY, of New York, in the county and State of New York, have invented a certain new and useful Improvement in Electric Lamps, of which the following is a specification.

My present improvement relates to vo1taicare electric lamps.

The improvement consists in the combination, in an electric lamp, with an upper carbon, of wheels-controlling its feeding, comprising a pinion engaging with arach on the rod of the carbon-holder, and also comprising a ratchet or friction wheel, a pawl or dog for engaging with the ratchet or friction wheel, a connection between one of the wheels of the train and its shaft, admittingof the movement of the shaft of the wheel in one direction without operating the said wheel, an electro-magnet or solenoid, and a connection between the pawl or dog and thearmature or core, whereby the electro magnet or solenoid is adapted to control the feed of the said carbon, and can lift the'same without operating the Whole train of wheels to establish the voltaic arc.

The improvement also consists in the combination of an upper carbon, wheels controlling its feeding, comprising a pinion engaging with a rack on the rod of the carbon-holder, and also comprising a ratchet or friction wheel, a pawl or dog engaging with the ratchet or friction wheel, an electro-magnet or solenoid,

a lever connecting the pawl or dog with thearmature or core of the electro-magnet or solenoid, and a connection between one of the wheels of the train and its shaft, permitting of the movementof this shaft in one direction without operating the said wheel.

The improvement also consists in other features, hereinafter described and claimed. 1n the accompanying drawings, Figure 1 is a sectional elevation of an electric lamp embodying my improvement. Fig. 2 is a vertical section of a portion of the lamp, taken in a plane at right angles to that of Fig. 1. Fig. 3 is a vertical section of a portion of the lamp, taken in a plane parallel to that of Fig. 2. Fig.

4 is a transverse section of the lower portion of the lamp. Fig. 5 is a view illustrative of a modification of the mechanism for controlling the upper carbon. Fig. 6 is a sectional elevation of the lamp, illustrating another feature of my improvement. Fig. 7 is a transverse section of the lower part of this lamp, and Fig. 8 is a perspective view ofa shunt empldyed in the lamp.

Similar letters of reference designate corresponding parts in all the figures.

A designates the upper carbon, and B designates the lower carbon. They are shown as fitted into holders A B, which have square or polygonal sockets provided with set-screws a b.

The frame of the lamp consists essentially ofa case, 0, which may be made of sheet metal, containing certain mechanism for controlling the feed of the upper carbon, as also for lifting it to form the voltaic arc, and two metallic tubes, D D, which are fitted into sockets in the bottom of the said case C, but are insulated therefrom by gaskets c 0, of india-rubber or other suitable material. Metallic tubes E, secured to the head of the case 0, support the same from a cross-head, F, which is provided with an eye, 01, whereby the lamp may be hung on anyappropriate supporting device, and with binding-screws 0, whereby the line wires or conductors G may be secured to the lamp. The tubes E are insulated from the head of the case C by bushingsf, of india-rubber or analogous" material, and are furnished with plugs g, that are secured thereto by screws h and fastened to the case C by means of nuts 2', screwed on their lower ends and bearing against the bushings f. The screws It also serve to secure to the tubes wires H H, through which the circuit is continued from the tubes E, as will be hereinafter explained.

The lower-carbon holder B is secured to a plate, D by which the tubes D D are connected. A single screw, B extends upward through a slot in this plateand enters a tapped hole in a lateral extension, B of the holder. The holder may be adjusted transversely by means of the slot, and may be swung around upon the screw B as a pivot, and the screw may serve as a means of swinging it. This screw may be screwed into the holder far enough to clamp the holder in different positions to which it may be adjusted. Provision is afforded by this combination of parts for adjusting the lower carbon into line with the upper, and the said carbon may be turned in its holder to aid in such adjustment. A globeholder, I, is secured to the plate D and provided with a set-screw, j, one or more, for fastening the globe in it.

The upper-carbon holderis fastened to a rod, J, which is provided with a longitudinally-arranged toothed rack, J. This rod with its rack passes up through the case (J and into a tube, K, which extends from the cross-head F into the said case.

The rack J of the rod Jengages witha pinion, L, which is rigidly affixed to one side of a gear-wheel, L, mounted on a shaft, 7.".

At one side of the gear-wheel L there is loosely mounted on the shaft a gear-wheel, L and adjacent to this wheel there is secured to the said shaft a ratchet-wheel, L A pawl, L is pivoted to the wheel L and held in engagement with the rateh et-wheel L by a spring, L The teeth of this ratchet-wheel are so arranged that when the rod J, with its rack J, is moved upward no motion will be imparted to the wheel L but the teeth of the ratchetwheel L will play past the pawl L but so that when the said rod is moved downward motion will be imparted to the wheel L The wheel L engages with a pinion, L", which is affixed to a shaft, k, on which is also mounted a wheel, L". The wheel L engages with a pinion, L arranged on a shaft, W, on which is also mounted a gear-wheel, L that engages with a pinion, L, on a shaft, Ye

The gear-wheel L en gages with agear-wheel, L", mounted on a shaft, 70 on which is also arranged a ratchet-wheel, L.

M designates a pawl, pivoted to one end of a lever, N, and engaging with the ratchetwheel L. A spring, 0, affixed to the top of the lever N, and bearing against an inclined surface on the upper end of the pawl M, holds the pawl against this ratchet-wheel. A bar, Z, prevents the pawl from being accidentally moved away from the ratchet-wheel sufficient] y far to throw the inclined surface at its upper end away from the spring 0. The lever N is fulcrumed between its ends to a shaft or arbor, on, and at the end farthest from the pawl M it is secured by a screw, it, to the core P of an eleetro-magnet or solenoid, P. A spring, Q, arranged within this solenoid, bears against the lower end of its core, and may be more or less compressed by a screw, 0, working in a socket in the bottom of the case 0, so as to more or less counteract the attractive force of the solenoid to suit any electric current. The various gear-wheels and pinions may have their shafts journaled in metallic side frames connected so that the whole may be removed from the case 0. The lever N will in such case have its fulcrum secured to these side frames, and then it will only be necessary to detach the screw it from the core P of the solenoid to permit of the withdrawal of the referred-to mechanism.

The wire H extends from the plug 9 of the tube E, to which it is secured, to one end of the wire of the solenoid P. The upper end of the solenoid-wire extends to one of the side frames in which the gear-wheels and pinions are supported. Thence the circuit extends through the gear-wheels and pinions to the rod J, and thence to the upper carbon, A. The wire H extends from the plug 9 of the tube E, in which it is fastened, to the tube D, and thence through the plate D to the lower carbon, B.

The upper carbon will of course descend into contact with' the lower carbon before an electric current is supplied to the lamp; but when an electric current is supplied the solenoid P draws down its core P, and with it the end of the lever N, which is fastened thereto. The other end of the lever N is thereby raised and causes the pawl M to rotate the ratchet-wheel L. The rotation of the ratchet-wheel L is imparted by the gear-wheel L to the gearwheel L, and by the pinion L, which is affixed to the same shaft as the gear-wheel L, to the rack J and rod J but as the ratchet-wheel L in this operation plays past the pawl L the other gear-wheels and pinions are not actuated. This is important, as the solenoid is thus relieved of the work incident to operating the other gear-wheels and pinions when it is employed in lifting the upper carbon to establish the voltaic are. It will be observed that the solenoid in this operation acts through the leverage of the gear-wheel L and pinion L. Hence I am enabled to make it smaller than I could otherwise and of less resistance.

Should it be desirable to raise the upper carbon or the rod J by hand, this can be done without having to operate the whole train of gear-wheels and pinions; hence it can be done more quickly than otherwise would be practicable.

After the voltaic are is established the earbons are gradually consumed. When the are thus becomes so elongated as to materially increase the resistance in the circuit the solenoid is weakened to an extent that will permit the spring Q to raise the core P far enough to move the pawl M beyond the reach of the ratchet-wheel L Thereupon the upper carbon descends slowly under the retardation caused by the rotation of the whole train of gear-wheels and pinions, for when they are rotated in the direction due to the descent of the said carbon the ratchet-wheel L engages with the pawl L When the upper carbon has descended sufficiently far to reduce the resistance of the circuit to the normal quantity the solenoid becomes energized to an extent which enables it to raise the pawl M into engagement with the ratchet-wheel L whereupon the upper carbon is locked in position again.

A stop, S, pivoted to the bottom of the case (3, may be swung into engagement with the rack J, to lock'the upper carbon in position, if desirable.

In lieu of the ratchet-wheel L and pawl M, I may use a friction-wheel, L, and dog M as shown in Fig. 5. This dog will be pivoted to the leverNin the same manner as the pawl M, and will have similarly combined with it a spring, 0. It will also have combined with it 1 anoe of the circuit due to the elongation of the voltaic arc, and the .dog M in consequence thereof, descends, it will be removed from contact with the friction-wheel because of its receding face, and that thereupon the upper carbon will be fed downward. When the resistance in the circuit is reduced to the normal condition by the feed of the upper carbon, the solenoid P raises the dog M and causes it to engage with the wheel and lock the upper carbon. It the dog has sufiicient upward movement it will rotate the friction-wheel in the same manner that the pawlM would undersimilar circumstances rotate the ratchet-wheel L designates a static shunt, consisting of a number of rods of carbon connected at the ends successively by metal plates. At one end it is connected by a wire to the tube D and at the other to the tube D. The carbon is more desirable than a wire resistance, for the reason that there is no possibility of its becoming fused or melted.

What I claim as my invention, and desire to secure by Letters Patent, is-

1. Inan electriclamp,thecombination, with an upper carbon, of wheels controlling its feeding, comprising a pinion engaging with a rack on the rod of the carbon-holder, and also comprising a ratchet or friction wheel, of a pawl or dog for engaging with the ratchet or friction wheel, a connection between one of the wheels of the train and its shaft admitting of the movement of the shaft of the wheel in one direction without operating the said wheel, an electro-magnet or solenoid, and a connection between the pawl or dog and the armature or core, whereby the electro-magnet or solenoid is adapted to control the feed of the said carbon and can lift the same without operating the whole train of wheels in order to establish the voltaic arc, substantially as specified.

2. In an electric lamp, the combination of an upper carbon, wheels controlling its feeding, comprising a pinion engaging with a rack on the rod of the carbon-holder, and alsocomprising a ratchet or friction wheel, a pawl or dog engaging with the ratchet or friction wheel, an electromagnet or solenoid, a lever connecting the pawl or dog with the armature or core of the electro-magnet or solenoid, and a connection between one of the wheels of the train and its shaft permitting of the movement of this shaft in one direction without operating the said wheel, substantially as and for the purpose specified.

3. In an electric lamp, the combination of an vupper carbon, a holder therefor attached to a rod, J, provided with a rack, J, a train of wheels comprising the pinion L, wheel L, wheel L ratchet-wheel L wheel L its shait 7c, ratchet-wheel L and pawl L", the pawl M, spring 0, and the leverN, the solenoid P, and its core P, substantially as specified.

0. A. HUSSEY.

Witnesses:

T. J KEANE, JAMES It. BOWEN. 

